Postrenal Azotemia can be caused by urinary tract obstruction below the kidneys.
It is characterized by no intrinsic parenchymal disease.
Examples include prostate hyperplasia, blockage of ureters by stones/cancer, Serum BUN:Cr ratio greater than 15.
Postrenal Azotemia occurs when the pathways in the kidney are blocked causing an increase of nitrogen compounds in the blood. The blockage usually occurs below the kidneys area such as in the ureters, urethra and even in the passage through the bladder. Other common causes of postrenal azotemia are kidney stones, inflammation of the kidneys, cancer, congenital disorders, pregnancy and vesi coureteral reflux and enlargement of the prostate glands. When the passageway is blocked at the area below the kidneys, it obstructs the flow of urine and causes an increase of nitrogen compounds in the kidneys. When the urine flow is blocked and the excess of nitrogen compound goes back to the kidneys, it can potentially leads to hydronephrosis.
If you suspect or noticed that you have symptoms of postrenal azotemia, it is advised that you see professional medical help as soon as possible to determine if you are affected by azotemia. For a person who is found to have azotemia, he is then required to go for urine and blood tests to determine the type of azotemia that he has contracted. This is determined by the ratio of the blood urea nitrogen and the creatinine ratio. When a person has postrenal azotemia, he will have the BUN:Cr ratio of more than 15.
The types of treatment a person with azotemia undergo can range from being placed on special diets to undergoing surgery. The person is put to a special diet to reduce the level of nitrogen compounds in their blood. Another method of treating the person with azotemia is by medication. Finally, when there are cases where medication could not resolve the problem, a surgery is necessary for the person to help them remove the blockage so to help their kidneys to heal and to function like normal.
Whether it is postrenal azotemia or the other two types of azotemia, this should not be taken lightly nor be ignored as it can lead to even bigger and severe health problem that nobody would ever want in their lifetime. So, tae care of your kidneys and if you find something unusual, you are encouraged to seek help immediately.